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Design variables and their levels- laser cutting parameters.
| Sr. No. | Symbol | Parameter | Level 1 | Level 2 | Level 3 |
|---|---|---|---|---|---|
| 1 | LPW | Laser Power (W) | 500 | 1250 | 2000 |
| 2 | CSM | Cutting Speed (mm/min) | 100 | 2850 | 5600 |
| 3 | FOL | Focal Length (mm) | 101.6 | 139.7 | 177.8 |
| 4 | GPR | Gas pressure (bar) | 2 | 4 | 6 |
